Definitions

intelligent

[in-tel-i-juhnt] / ɪnˈtɛl ɪ dʒənt /

ADJECTIVE

very smart

Synonyms

STRONGEST

astute brainy bright brilliant creative imaginative inventive knowledgeable original perceptive rational resourceful smart well-informed wise

WEAK

able acute alert alive all there apt calculating capable clever comprehending deep discerning enlightened exceptional highbrow ingenious instructed keen knowing penetrating perspicacious profound quick quick-witted ready reasonable responsible sage sharp thinking together understanding whiz witty

Antonyms

STRONGEST

dark dull ignorant normal old stupid typical unaware uncreative uneducated unimaginative unintelligent uninventive unreasonable unresourceful worn

WEAK

foolish idiotic imbecile

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Anthropic said it enabled pre-release access for a handful of organisations because the tool was so intelligent that it could be dangerous because of its ability to exploit or hack computer systems.

From BBC • Jun. 13, 2026

Houdon’s Franklin, though clearly an old man, looks amused and engaged, with a youthful gaze, but also highly intelligent and judicious, sociable but not entirely available, a bit enigmatic.

From The Wall Street Journal • Jun. 12, 2026

I just needed “Disclosure Day” to have the same spark of intelligent life.

From Los Angeles Times • Jun. 10, 2026

On Tuesday, a psychological expert testified that the defendant displayed no evidence of a psychotic disorder, that he was intelligent, "controls what he says" and shows "few emotions".

From Barron's • Jun. 4, 2026

"Not as bright-colored, not as big. And Frank's face is more intelligent."

From "All About Sam" by Lois Lowry

Vocabulary lists containing intelligent

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